2/98 A car is traveling around a circular track of 800-ft radius. If the magnitude of its total acceleration is 10 ft/sec² at the instant when its speed is 45 mi/hr, determine the rate at which the car is changing its speed.

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Intersection Design

An intersection is a location where two or more roads or railways meet or join. The traffic movement is controlled at the intersection that depends on its design and type. It governs the operation, efficiency, speed, capacity, and safety of the highways, airways, and railways. The movement of the pedestrian causes hazards and delays at the intersection.